A new version of BIND is in the works. Stay patient, or switch back to 9.10.3-P4.

FreeBSD users can revert their ports tree back to r414265, duplicate /usr/ports/dns/bind910 as /usr/ports/dns/bind9103P4, rush the ports tree towards the present, and change the origin for BIND from dns/bind910 to dns/bind9103P4, e.g. portupgrade -fpvo dns/bind9103P4 dns/bind910. Don’t forget to restart BIND, and change the origin once more when the successor of 9.10.4 is available.